Linux Kernel up to 4.14.13 Page Pinning net/rds/rdma.c rds_cmsg_atomic null pointer dereference

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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.14.13. The affected element is the function rds_cmsg_atomic of the file net/rds/rdma.c of the component Page Pinning Handler. This manipulation causes null pointer dereference. This vulnerability appears as CVE-2018-5333. The attack requires local access. In addition, an exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.14.13 (Operating System). It has been declared as problematic. Affected by this vulnerability is the function rds_cmsg_atomic of the file net/rds/rdma.c of the component Page Pinning Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel through 4.14.13, the rds_cmsg_atomic function in net/rds/rdma.c mishandles cases where page pinning fails or an invalid address is supplied, leading to an rds_atomic_free_op NULL pointer dereference.

The bug was discovered 01/11/2018. The weakness was presented 01/11/2018 as confirmed git commit (GIT Repository). The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2018-5333 since 01/11/2018. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 106280 (Fedora 26 : kernel (2018-8dc60a4feb)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351264 (Amazon Linux Security Advisory for kernel: ALAC2012-2018-003).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (47957), Tenable (106280), SecurityFocus (BID 102510†) and CERT Bund (WID-SEC-2022-0532). See VDB-111443, VDB-111732, VDB-111823 and VDB-112682 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Oracle Linux
  • Debian Linux
  • Open Source Linux Kernel
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle VM
  • NetApp FAS
  • Avaya Aura Communication Manager
  • Avaya Aura Session Manager
  • Avaya Aura Application Enablement Services
  • Avaya Aura System Manager
  • Avaya Aura Experience Portal
  • NetApp AFF

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106280
Nessus Name: Fedora 26 : kernel (2018-8dc60a4feb)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 864875
OpenVAS Name: Ubuntu Update for linux USN-3583-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

01/03/2018 🔍
01/11/2018 +8 days 🔍
01/11/2018 +0 days 🔍
01/11/2018 +0 days 🔍
01/11/2018 +0 days 🔍
01/11/2018 +0 days 🔍
01/23/2018 +12 days 🔍
01/24/2018 +1 days 🔍
09/14/2025 +2790 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2018-8dc60a4feb
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-5333 (🔍)
GCVE (CVE): GCVE-0-2018-5333
GCVE (VulDB): GCVE-100-111733

OVAL: 🔍

SecurityFocus: 102510
CERT Bund: WID-SEC-2022-0532 - Linux Kernel: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/11/2018 16:33
Updated: 09/14/2025 05:15
Changes: 01/11/2018 16:33 (80), 12/22/2019 10:15 (3), 01/29/2021 20:34 (3), 01/20/2023 15:30 (3), 01/20/2023 15:35 (1), 12/13/2024 19:02 (22), 09/14/2025 05:15 (7)
Complete: 🔍
Cache ID: 216::103

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